Harness mechanism for looms.



No. 809,933. PATENTED JAN. 16, 1906. R. GROMPTON.

HARNESS MECHANISM FOR LOOMS.

APPLICATION FILED JUNE 15, 1904.

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RANDOLPH GROMPTON, OF WORCESTER, MASSACHUSETTS.

HARNESS MECHANISM FOR LOONIS.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed June 15,1904. Seria No. 212,692.

To aZZ whom it may concern:

Be it known that I, RANDOLPH CROMPTON, a citizen of the United States,residing at T/Vorcester, county of \Vorcester, and State ofMassachusetts, have invented an Improvement in Harness Mechanism forLooms, of which the following description, in connection with theaccompanying drawings, is a specification, like letters on the drawingsrepresenting like parts.

This invention relating to harness mechanism for looms has for itsobject to improve and simplify the construction of the connectionsintermediate the harness levers or jacks and the upper sides of theharness-frames, said connections, as shown, comprising a sector having anotched extension and a sheave.

The sectoris so shaped as to have connected with it the strappingleading to opposite ends of the harness or heddlelrames, one of thestraps-the longer one being connected with one part of said sector-leverand being extended from and sustained by a sheave. By notching theextension of each sector, as shown, the usual cording having loops atits end may be readily moved to engage any notch oi the extension of thesector, thus providing for opening the shed more or less wide andproviding for lifting any harness-frame to any extent without relationto the other adjoining harness-frame, if such should be necessary.

Figure 1 in side elevation, represents aloom embodying my invention andFig. 2 a detail of the sector detached.

The notched harness levers or jacks B, sus tained on a rod B, may bemoved in any manner, the means herein outlined being common to woolenlooms where revolving cylinder-gears actuate vibratongears joined byconnectors to said levers.

The arch A501 the loom-frame has a stand d, that sustains a rod (1, onwhich is mounted a series of sectors, each comprising two arcshapedportions (Z cl and a notched extension (1 The strap e, connected withthe righthand end of the harness-frame C, is secured to the portion (1and the strap 6, connected with the opposite end of said harness-frame,is attached to the portion d The strap e is sustained between theharness-frame and the is notched, so that the links h at one end of thecords or straps h, attached at its opposite end by link k to aharness-jack, may be highest notch of the harness-jack and then' .led inusual manner to the harness-frame.

So, also, it will be understood that by placing the link it in the lowernotch of the harness jackand in the highest notch of the extension (1 Isecure the smallest possible opening of the shed. Providing theextension with notches enables the manipulation of each harness-framethat it may be raised to exactly the desired point.

There is a lever and sheave for each harness-frame, and the straps areconnected with sectors, so that both straps are wound on the sectorswhen the lever is turned in one direction through a moving harness leveror jack, said straps being unwound from said sectors when said leversare moved in the opposite direction to eflect the descent of aharness-frame. The jacks B at their lower ends are connected withextensions t of sectors t, turning about a fulcrum F. The extensions arenotched, as described, with relation to the sectors having the portions(1 d", and it will be understood that the loops a attached to the hooksor wires a must be adjusted in the notches of the extension tocorrespond with the positions of the loops h of the straps 7t inconnection with the extensions (1 The levers B have attached wires a,that engage straps 0, extended over pulleys a the strap a beingconnected with the wires a referred Having fully described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom, a set of sheaves, and a set of sectors mounted above theharnessframes, straps directly connecting the sectors to one end of theharness-frames, and other straps passing over said sheaves andconnecting the sectors to the opposite end of the harnessframes, saidsectors having notched extensions with either notch of which may beengaged a part of the harness-connecting cords to thereby vary theextent to which any harness-frame may be raised.

2. In a loom, a set of notched harneSs-levers, a set of harness-frames,a serles of sheaves, a series of sectors having notched extensions anddisposed between said jacks and harness frames, connections between saldnotched jacks and said notched sectors and adjustable in the notches ofsaid jacks or sectors for the purposes set forth, and straps directlyuniting the sectors to the harnessframes at one end, and other strapsunited with said sectors passed thence over said sheaves and joined tothe harness-frames at their other end.

3. In a loom, a set of harness-jacks, a set of harness-frames, a seriesof sheaves and a series of sectors having notched extensions anddisposed between the jacks and harness frames, connections between thesaid extensions and jacks, and straps directly connecting the sectors toone side of the harnessframe and other straps passing over said sheavesand connected to the other side of said frame and the sectors.

4. In harness mechanism for looms, a harness-frame, a harness-lever,another lever, a

straps connected with such harness-frames near its opposite ends, eachof said straps being united to said sector-lever, one of said strapsbeing passed over said sheave whereby when said lever is moved in onedirection, both said straps will be wound thereon and raise theconnected harness-frame.

6. In harness mechanism for looms, a harness-frame, asector-levermounted on the loomframe above said harness-frame, a harness-lever,means to connect said harness-1ever with said sector-lever, a sheave,and straps connected with said harness frame and with said sector-lever,one of said straps passing over said sheave, the ends of both saidstraps being wound on the lower sectorshaped end or part of said lever.

7. In a loom, a set of harnessframes, a set of sheaves, and a set ofsectors mounted above the harness frames, said sectors having notchedextensions with either notch of which may be engaged a part of theharnessconnecting cords to thereby vary the extent to which anyharness-frame may be raised, a sector-lever located below theharness-frame and having notched extensions, and means connecting saidextensions and harness-levers.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

RANDOLPH CROMPTON.

IVitnesses:

CHARLES F. ALDRICH, Rooxwoon HOAR.

